Cards (11)

    • What materials are made from limited natural resources?
      Metals, glass, building materials, plastics
    • Why is reusing items beneficial?
      It saves energy and reduces environmental impact
    • What is the difference between reusing and recycling?
      Reusing involves using items again, recycling processes materials
    • What are the advantages of recycling?
      • Fewer quarries and mines needed
      • Less crude oil extraction for plastics
      • Reduced energy needed for recycling
      • Lower greenhouse gas emissions
      • Decreased landfill waste
    • What is one disadvantage of recycling?
      Collection and transport require organization
    • Why can sorting metals be difficult?
      Different metals need to be separated accurately
    • How does the purity of metals affect recycling?
      Higher purity requires more processing for recycling
    • What purity level is required for copper used in wiring?
      Very high purity is required for copper
    • How does steel purity differ from copper in recycling?
      Steel does not require as high purity as copper
    • What happens to scrap iron during steel production?
      It can be added to the steel furnace easily
    • What is the benefit of adding scrap iron to steel production?
      It reduces the cost of making steel